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搜索结果: 1-15 共查到理学 Phylogeny相关记录17条 . 查询时间(0.17 秒)
柑橘是世界上最大宗水果,我国是世界上最大的柑橘生产和消费国。枯梢,流胶、腐烂、溃疡和开裂是我国柑橘上常见的枝干病害,但对诱发其发生的病原菌种类一直缺少系统性研究,以往其病原被简单地归咎于树脂病(Diaporthe citri)和炭疽病(Colletotrichum gloeosporioides)。实际并非如此。2017-2020年,浙江大学农学院李红叶教授课题组从我国柑橘主产区广泛收集枝干病害样...
Three new types of arthropod from Cambrian intertidal lithofacies of the Elk Mound Group and Lodi Member of Wisconsin, and the Potsdam Group of Quebec are described. These arthropods are preserved ven...
In this work we present the development of a workflow based on Taverna which is going to be implemented for calculations in Phylogeny by means of the MrBayes tool. It has a friendly interface develope...
In the small phylogeny problem we, are given a phylogenetic tree and gene orders of the extant species and our goal is to reconstruct all of the ancestral genomes so that the number of evolutionary op...
We present an algorithm for phylogenetic reconstruction using quartets that returns the correct topology for $n$ taxa in $O(n \log n)$ time with high probability, in a probabilistic model where a quar...
We analysed 1040 individual trees, located in 62 plots across the Amazon Basin for leaf mass per unit area (MA), foliar carbon isotopic composition (δ13C) and leaf level concentrations of C, N, P, Ca,...
The gayal (Bos frontalis) in China is a very rare semi-wild and semi-domestic bovine species. There still exist remarkable divergences on the gayal??s origin and taxonomic status. In the present study...
摘要采用简单随机抽样法对柴达木山羊群体进行了遗传检测,从毛色、外型特征、体尺、血液蛋白与DNA多态性等5个方面进行了群体遗传结构分析,并探索了其系统地位。结果表明:(1)毛色和形态特征的平均表型异质度分别为0.3419、0.5207;(2)血液蛋白在6个基因座上具有多态性,平均基因座杂合度为0.2584;(3)DNA-RAPD标记表现丰富的多样性,基因多样度为0.4085~0.5318。通过对柴达...
摘要参考已经克隆的活化素(activin)基因βA亚基成熟肽序列,设计一对兼并引物,从绿孔雀(pavo muticus)、蓝孔雀(pavo cristatus)和白孔雀基因组中克隆到活化素基因βA亚基成熟肽序列。测序结果表明,活化素基因βA亚基成熟肽序列长345bp,编码115个氨基酸。序列分析表明,蓝孔雀与绿孔雀核苷酸同源性为98.0%,而蓝孔雀与白孔雀核苷酸同源性为98.8%。NCBI收索结果...
专著信息 书名 Biogeography and molecular phylogeny of the genus Schizothorax (Teleostei: Cyprinidae) in China inferred from cytochrome b sequences 语种 英文 撰写或编译 作者 Dekui HE,Yifeng CHEN 第一作者单位 出版社 J. Biogeogra...
A molecular phylogeny of the Arctoidea           2007/7/28
期刊信息 篇名 A molecular phylogeny of the Arctoidea 语种 英文 撰写或编译 作者 Zhang Y P,Ryder O A 第一作者单位 刊物名称 Chin J Genet 页面 1996,23:P.239-246 出版日期 1996年 月 日 文章标识(ISSN) 相关项目 遗传学
期刊信息 篇名 Phylogeny of prokaryotes and chloroplasts revealed by a simple composition approach on all protein sequences from whole genome without sequence alignment 语种 英文 撰写或编译 撰写 作者 Z.G. Yu,L.Q. Zhou,V...
期刊信息 篇名 Origin and phylogeny of chloroplasts: A simple correlation analysis of complete genomes 语种 英文 撰写或编译 撰写 作者 Ka Hou Chu,Ji Qi,Zu-Guo Yu,Vo Anh 第一作者单位 刊物名称 MOLECULAR BIOLOGY AND EVOLUTION 页面 21 (...
The homology of the antennulary segments of species belonging to some genera of Cyclopidae is determined by comparing the common setation patterns on female antennules. Comparison of the setation patt...
Jasione L., a genus with small flowers in compact ebracteolate heads subtended by involucral bracts, is very isolated in the Campanulaceae. It is mainly a Mediterranean-European genus with c. 15, most...

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